The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 03, 2013
Filed:
Dec. 12, 2011
Nobuhiko Uryu, Kariya, JP;
Nobuhiko Uryu, Kariya, JP;
Denso Corporation, Kariya, JP;
Abstract
An electric power steering device includes a torque detector that includes a torque sensor and a control unit. When abnormality has not occurred in a torque signal, an output section in the torque sensor transmits a normal signal that is a value based on the torque signal and is between a second lower limit that is greater than a first lower limit and a second upper limit that is less than a first upper limit. When abnormality has occurred in the torque signal, the output section transmits a first fault notification signal that is a value between the first and second lower limits or a second fault notification signal that is a value between the first and second upper limits. The control unit identifies a fault and calculates an amount of assist for reducing steering torque based on a signal transmitted from the output section.